flanigan



1.1. FLANIGAN. DEVICE FOR mums UP THBROLLS 0F DUPLICATING MACHINES..

APPLICATION FILED APR. 24. 19l9.

' Patented Sept 30, 1919.

2 SHEETS-SHEET I.

' flUSUZ OTV M0 2 J fld/ng'qarg dag 175! 3,1. FLANIGAN.

DEVICE FOR TRUING UP THE ROLLS OF DUPLICATILNG MACHINES.

APPLICATION FILED APR. 24. l9l9.

' Patented Sept. 30, 1919 2 SHEETS-SHEET 2.

- JOHN'J. FLANIGAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO DUPLICATOJR-MANUFACTUR- ING- COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF WESTVIRGINIA.

DEVICE FOR TRUING UP THE ROLLS OF DUPLICATING-MACMNES.

To all whom it may concern:

Be it known that 1, JOHN J; FI:Al TIGAN, a citizen of the United States,reslding at Chicago, in the county of Cook and State of. Illinois,haveinvented certain new and useful Improvements in Devices for TruingUp the Rolls of Duplicating-Machines, of which ample, in my formerLetters Patent No;.

1,118,119,. dated November 24, 1914,, it frequently happensthat theduplicating'band is wound unevenly on the spindle of the winding-uproll; that is, the band tends to creep toward one end or the other ofthe spindle. When the rolls are reversed in the machine for re-use ofthe duplicating band, the latter as it unwinds fails to lie exactly trueon the bed of the machine, and as it is wound up on the receiving roll,the endwise creeping tendency is still further exaggerated.-

One object of my present invention is to provide a simple, inexpensiveand practical device in the nature of an accessory of the machine itselffor truing up the rolls. On account of the sticky character of theduplicating band, an unevenly wound roll can not be corrected by simplypressing the roll endwise on the splndle to brin the convolutions inexact superposition. ence, the effect must be cured by rewinding, andthedevice of my present invention operates on this principle, utilizingcertain parts of the duplicating machine itself to effect. this re- Iwinding.

Another object of the invention is to provide an improved meansfor-moistening the rolls when they have become too dry.

The deviceof my invention, its mode of use, and the advantages flowingtherefrom will all be readily understood and appre .ciated by thoseskilled in the art from the following description, taken in connectionwith the accompanying drawings, wherein- Figure 1 is a top plan view ofa multiple copying machine of the type lllustrated 1n my former patent,above referred to, showing my present [improvement mounted in Workingform thereon.v p

Specification of Letters Patent.

Application filed April 24, 1919. Serial No. 292,301.

Patented Spt.3, 1919.

Fig. 2 is a side elevation, partly broken out, as viewed from the lowerside of Fig. 1.

Referring to the drawings, 5 designates each of the arallel side framemembers, and 6 the bed-p ate of the machine frame, the bed-plate 6 beingcovered by a strip-of cloth 7 stretched thereoyer and secured at eachend by clamping strips 8. On the bed, in the regular use of the machinefor copying, is stretched the duplicating band 9, the two ends of whichare attached to spindles 10 and 11 at the forward and rear ends of themachine frame, respectively, the band 9 being guided over supporting andguiding rolls 12 and 13 at the front and rear ends of the bed,respectively, and the winding up spindle 10 bemgengaged with a windingchuck and operated by a chain and sprocket winding mechanism 14 actuatedby a hand crank 15, all as fully described in my former patent abovereferred to. At one side of the machine frame is a longitudinal rod orbar 16 on which is mounted for both turning and sliding movement theplaten carriage designated as an entirety by 17, this platen carriagebeing shown as swung upwardly andbackwardly to facilitate the rewindingoperation when a roll is to be trued up.

Coming now to those features with which my present invention isconcerned, 18 designates as an entirety a low frame structurehavingsubstantially the-form of a shallow rectangular pan that isadapted torest di. rectly on the printing bed of the machine. To the under side ofthe frame '18 are secured a pair of hooks 19 which engage over the rearguide roll 13 to resist the forward pull of the band during-therewinding oper ation. At the rear of the frame 18 and extendingtransversely thereof is a rail 20, and

near the forward end of the frame 18' are a 'rear cross-bar 24 aresecured a pair of depending legs 26 in which are journaledgroovedrollers 27 resting upon the rail 20.

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llt will thus beseen: that the carriage has a "wheel and trackengagement with the under lying frame structure 18 and is movable.crosswi'se of the latterwith a minimum of I friction.

Secured to and extending between the side bars'23 of the carriage isanintermediate cross-bar 28, and secured to the latter and to the rearcross-bar 24: are a pair of hangers 29 which serve to removably supporta rectangular water pan 30. In this pan dips the lower portion of acloth covcred moistening roll 31, the spindle of which is journaled inopen bearings 32 formed in the upper edge of the side bars 23 of thecarriage; In the upper edges of these side bars are also formed obliqueopen bearings or journals 33 adapted to receive the spindle of the roll34 which is to be trued. Se-

cured to .the side bars 23 in rear of the bearings 32 are a pair ofposts 35, in the up-' per ends of which are formed open bearings 36 toreceive the spindle ofa guide roll 3 which latter may conveniently beone of the stock duplicating band spindles. 38 designates a -de block orstrip that is adapted to overhang the forward guiding and supportingroller 12 and is adjustable lengthwise of the latter by means of aclamping screw 39 (Fig. 2) by which it is secured in fixed position tothe forward edge of the bed-plate. Thisguide block or strip 38 isdesigned to mark a fixed position for one edge of the duplicating bandduring the re winding operation, the edge of the band passing in slidingcontact with the guide strip. This device is preferably used in theire-winding operation, but is not indispensable since I have found thatexperienced op-' era tors are able to effect accurate re-winding andtruing up by simply observing the position of one edge of the bandrelatively to the surface of the roller 12 over which the band passesjust before it goes onto the rewinding spindle. 40 designates a dri panplaced beneath the winding-up spin lewto catch any superfluous moisturethat may fall from the roll during the i'e-winding operation.

In the use of the device, when an unevenly wound roll to be trued up,the platen frame 17 is thrown back out of the way, the

. frame withthe carriage resting thereon is placed on the bed of themachine with the hooks 19 engaged behind the rear guide r911 13, asclearly shown in Fig. 2, water is placed in the pan 30 inlsufiicient'am'ount to submerge the lower portion. of the moisteningroll 31 the roll 34. to be trued is set in the bearings 33, and'the freeend of the band, to

which the empty winding up spindle is attached, is passed. over themoistening roll 31, then over the guide roll 37, then'forwardly downover the forward guiding and supporting roll 12 of the machine; and thespmdle is entered in the windingchuck.

' lhe guide block 38, if used, is then adjusted into contact with theedge of the band, and

the operator grasps the crank 15 with one hand and the carriageframewith the other 7 Wise suflicient and proceeds to re-wind the band.During the re-windin the carriage is shifted crossi y to always maintainone edge of the band in sliding contact with the guide block 37 or at afixed position on the sur- 'faceof the roller 12, so that the band iswound up evenly on the spindlelO wlth the successive turns or coils in.accurate superposition. The band passing in contact with the surface ofthe roll 31 is given the necessary additional moisture to prevent theband from drying out and to maintain it in good working condition.

I havefound that operators of this device soon become exceedingly expertand are able to true up an unevenly wound roll in but a few seconds oftime. One advantage of this device resides in the fact that theduplicating machine itself may be used in cooperation with the describedattachment or accessory tov efi'ect the purpose of the inventlon.

Manifestly the device shown and described may be modified invdetail to aconsiderable extent without involving any departure from the principleof operation or sacrificing any of the advantages secured. Hence Ireserve all such variations and modifications as fall.

within the spirit and purview of the append ed claims. I claim: Y 1. A-device for truing up the rolls of a duplicating machine by rewinding,comprisbe supported on the duplicating machine and movable crosswise ofthe latter, said carriage having journals for the spindle of the rollto'be trued, and a support for the duplicating band as the lattertravels from.

the said roll to the rewinding spindle.

3. A device for truing up the rolls of a duplicating machinebyrewinding, comprising, in combination, a carriage adapted to besupported on the duplicating machine and movable crosswise of thelatter, said carriagehaving journals for the spindle of the roll to betrued, and a guide adapted to engage an edge of the duplicating band Ias the latter travels from the said roll the rewinding spindle,

4 A device fortruing u the rolls of a izs duplicating machine byrewmding, compris a ing, in combination,a carriage adapted to besupported on the duplicating machine and movable crosswise of thelatter, said AND .ing, in combination,

carriage having journals for the spindle of the roll to be trued, asupport for the duplieating band, and a guide adapted to engage an edgeof the duplicating band as the latter travels from the said roll to therewinding spindle.

5. A duplicating machine by rewinding, comprising, in combination, acarriageadapted to be supported on the duplicating machine and movablecrosswise of the latter, said carriage having journals for the spindleof the roll to be trued, a support for the duplicating band as thelatter travels from the said roll to the rewinding spindle, a guide forone edge of the duplicating band adjustable lengthwise of said support,and means for securing said guide in any adjusted position.

6. A device for truing up the rolls of a duplicating machine byrewinding, comprisa carriage adapted to be supported on the duplicatingmachine and movable crosswise of the latter, said carriage havingjournals for the spindle of the roll to be trued, means eating bandedgewise as the latter travels from said roll to the rewinding spindle,and means for moistening said band during its travel to therewinding'spindle.

7. In a duplicating machine accessory for the purpose described, thecombination of a frame structure adapted to rest on the bed of themachine, a earrlage niounted on and movable crosswise of said framestructure, said carriage having journals for the spindle of the roll tobe trued, and means for guiding the duplicating band edgewise as thelatter travels from said roll to the rewinding spindle.

8. In a duplicating machine accessory for device for truing up the rollsof a for guiding the dupliof the roll to be trued, a moistening rollmounted on said carriage, means for directing the band in contact withsaid moistening roll, and means for guiding the band edgewise as thelatter travels from said moistening roll to therewinding spindle.

9. In a duplicating machine accessory for the purpose described, thecombination of a frame structure adapted to rest on the bed of themachine, a carriage mounted on and movable crosswise of said framestructure, said carriage having journals for thespindle of the roll tobe trued, a moistening roll mounted on said carriage, a guide rolljournaled on said carriage and serving to direct the band in contactwith said moistening roll and means for guiding the band edgewise as thelatter travels from said guide roll to the rewinding spindle.

10.- In a duplicatin machine accessory for the purpose descri ed, thecombination of a frame structure adapted to rest on the bed ofthemachine, a carriage having wheel and track engagement with said framestructure and movable crosswise of the latter, said carriage havingjournals for the spindle of the roll to be trued, a water pan mounted onsaid carriage, a moistening roll dipping in said pan, a guide rolljournaled on the said carriage and serving to direct the band in contactwith said moistening roll, and means for guiding the band edgewise asthe latter travels from said guide roll to the rewinding spindle.

JOHN J. FLANIGAN.

